Timeline of 19th-century astronomy
| 1781 | Messier compiles catalogue of deep sky objects |
| W. Herschel discovers Uranus | |
| 1784 | Goodricke discovers variable nature of Delta Cephei |
| 1801 | Piazzi discovers first planetoid (Ceres) |
| 1814 | Fraunhofer maps lines in solar spectrum |
| 1820 | Foundation of Royal Astronomical Society |
| 1837 | Beer and Mädler publish first accurate map of the Moon |
| First determination of stellar parallax by W. Struve | |
| 1839 | Draper takes first astronomical photograph (Moon) |
| 1842 | Discovery of Doppler's principle |
| 1843 | Schwabe announces sunspot cycle |
| 1846 | Galle discovers Neptune based on calculations by Leverrier |
| 1856 | First silver-on-glass astronomical mirrors |
| 1858 | De la Rue photographs sunspots |
| 1859 | Kirchhoff and Bunsen identify dark lines in spectra |
| Argelander starts publication of Bonner Durchmusterung | |
| 1863 | Foundation of Astronomische Gesellschaft |
| 1868 | Janssen and Lockyer develop artificial solar eclipse method |
| Secchi describes four types of stellar spectra | |
| 1872 | Photography of spectrum of Vega by Draper |
| 1877 | Schiaparelli observes Martian `canali' |
| Hall discovers two moons of Mars | |
| 1885 | Start of Cape Photographic Durchmusterung by Gill |
| 1887 | Start of Carte du Ciel |
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vdheijden@yahoo.com Last modified in 2000 |
